Display screen or portion thereof with graphical user interface



FIG. 1 is a front view of a display screen or a portion thereof with agraphical user interface;

FIG. 2 is a front view of a second embodiment of a display screen or aportion thereof with a graphical user interface;

FIG. 3 is a front view of a third embodiment of a display screen or aportion thereof with a graphical user interface;

FIG. 4 is a front view of a fourth embodiment of a display screen or aportion thereof with a graphical user interface;

FIG. 5 is a front view of a fifth embodiment of a display screen or aportion thereof with a graphical user interface;

FIG. 6 is a front view of a sixth embodiment of a display screen or aportion thereof with a graphical user interface;

FIG. 7 is a front view of a seventh embodiment of a display screen or aportion thereof with a graphical user interface; and,

FIG. 8 is a front view of an eighth embodiment of a display screen or aportion thereof with a graphical user interface.

The broken lines showing a display screen or a portion thereof in allviews form no part of the claimed design. The remaining broken linesshowing portions of the graphical user interface form no part of theclaimed design. The stippling in all views represent a contrast inappearance that is part of the claimed design.

CLAIM The ornamental design for a display screen or a portion thereofwith a graphical user interface, as shown and described.